Ratio Enforcer (Letterbox Scale)
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using System.Collections; | |
using System.Collections.Generic; | |
using UnityEngine; | |
public class RatioEnforcer : MonoBehaviour { | |
[SerializeField] private float targetWidth = 256; | |
[SerializeField] private float targetHeight = 240; | |
// Use this for initialization | |
void Start() | |
{ | |
// set the desired aspect ratio (the values in this example are | |
// hard-coded for 16:9, but you could make them into public | |
// variables instead so you can set them at design time) | |
float targetaspect = targetWidth / targetHeight; | |
// determine the game window's current aspect ratio | |
float windowaspect = (float)Screen.width / (float)Screen.height; | |
// current viewport height should be scaled by this amount | |
float scaleheight = windowaspect / targetaspect; | |
// obtain camera component so we can modify its viewport | |
Camera camera = GetComponent<Camera>(); | |
// if scaled height is less than current height, add letterbox | |
if (scaleheight < 1.0f) | |
{ | |
Rect rect = camera.rect; | |
rect.width = 1.0f; | |
rect.height = scaleheight; | |
rect.x = 0; | |
rect.y = (1.0f - scaleheight) / 2.0f; | |
camera.rect = rect; | |
} | |
else // add pillarbox | |
{ | |
float scalewidth = 1.0f / scaleheight; | |
Rect rect = camera.rect; | |
rect.width = scalewidth; | |
rect.height = 1.0f; | |
rect.x = (1.0f - scalewidth) / 2.0f; | |
rect.y = 0; | |
camera.rect = rect; | |
} | |
} | |
} |
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